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Submission #639669

# Submission time Handle Problem Language Result Execution time Memory
639669 2022-09-11T00:49:30 Z null_awe A Difficult(y) Choice (BOI21_books) C++14
100 / 100
 2 ms 1104 KB 
#include <bits/stdc++.h>
#include "books.h"
using namespace std;

#define ll long long

void solve(int n, int k, ll a, int s) {
  int lo = -1, hi = n;
  while (lo < hi - 1) {
    int mid = (lo + hi) / 2;
    if (skim(mid + 1) <= a) lo = mid;
    else hi = mid;
  }
  vector<ll> vals(n);
  for (int i = 0; i < k; ++i) vals[i] = skim(i + 1);
  for (int i = max(hi - k, 0); i < min(hi + 1, n); ++i) vals[i] = skim(i + 1);
  ll sum = 0;
  vector<int> ans(k);
  for (int i = 0; i < k - 1; ++i) sum += vals[i], ans[i] = i + 1;
  if (hi < n) {
    sum += vals[hi], ans[k - 1] = hi + 1;
    if (sum <= 2 * a) {
      answer(ans);
      return;
    }
    sum -= vals[hi];
  }
  sum += vals[k - 1], ans[k - 1] = k;
  if (sum > 2 * a) {
    impossible();
    return;
  }
  if (sum >= a) {
    answer(ans);
    return;
  }
  int base = max(k, hi - k);
  for (int i = 0; base + i < hi; ++i) {
    sum -= vals[ans[i] - 1];
    sum += vals[base + i], ans[i] = base + i + 1;
    if (sum >= a) {
      answer(ans);
      return;
    }
  }
  impossible();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 464 KB Output is correct
10 Correct 1 ms 428 KB Output is correct
11 Correct 1 ms 428 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 464 KB Output is correct
14 Correct 1 ms 424 KB Output is correct
15 Correct 1 ms 464 KB Output is correct
16 Correct 1 ms 428 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1064 KB Output is correct
2 Correct 1 ms 1068 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1052 KB Output is correct
6 Correct 1 ms 1056 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 1 ms 1060 KB Output is correct
9 Correct 1 ms 976 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1064 KB Output is correct
2 Correct 1 ms 1068 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1052 KB Output is correct
6 Correct 1 ms 1056 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 1 ms 1060 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1048 KB Output is correct
11 Correct 2 ms 1056 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 1064 KB Output is correct
14 Correct 1 ms 1060 KB Output is correct
15 Correct 1 ms 1056 KB Output is correct
16 Correct 1 ms 1064 KB Output is correct
17 Correct 1 ms 976 KB Output is correct
18 Correct 1 ms 1072 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 976 KB Output is correct
21 Correct 1 ms 1060 KB Output is correct
22 Correct 1 ms 1068 KB Output is correct
23 Correct 1 ms 1064 KB Output is correct
24 Correct 1 ms 1068 KB Output is correct
25 Correct 2 ms 1068 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1064 KB Output is correct
2 Correct 1 ms 1068 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1052 KB Output is correct
6 Correct 1 ms 1056 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 1 ms 1060 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1048 KB Output is correct
11 Correct 2 ms 1056 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 1064 KB Output is correct
14 Correct 1 ms 1060 KB Output is correct
15 Correct 1 ms 1056 KB Output is correct
16 Correct 1 ms 1064 KB Output is correct
17 Correct 1 ms 976 KB Output is correct
18 Correct 1 ms 1072 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 976 KB Output is correct
21 Correct 1 ms 1060 KB Output is correct
22 Correct 1 ms 1068 KB Output is correct
23 Correct 1 ms 1064 KB Output is correct
24 Correct 1 ms 1068 KB Output is correct
25 Correct 2 ms 1068 KB Output is correct
26 Correct 1 ms 1056 KB Output is correct
27 Correct 1 ms 1044 KB Output is correct
28 Correct 1 ms 1060 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 1048 KB Output is correct
31 Correct 1 ms 1060 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 1056 KB Output is correct
34 Correct 1 ms 1056 KB Output is correct
35 Correct 1 ms 976 KB Output is correct
36 Correct 1 ms 1068 KB Output is correct
37 Correct 1 ms 1064 KB Output is correct
38 Correct 1 ms 1104 KB Output is correct
39 Correct 2 ms 1064 KB Output is correct
40 Correct 1 ms 1064 KB Output is correct
41 Correct 1 ms 1068 KB Output is correct
42 Correct 1 ms 1072 KB Output is correct
43 Correct 1 ms 1048 KB Output is correct
44 Correct 1 ms 1048 KB Output is correct
45 Correct 1 ms 1064 KB Output is correct
46 Correct 1 ms 1064 KB Output is correct
47 Correct 1 ms 1068 KB Output is correct
48 Correct 1 ms 1064 KB Output is correct
49 Correct 1 ms 1048 KB Output is correct
50 Correct 1 ms 1060 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1064 KB Output is correct
2 Correct 1 ms 1068 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1052 KB Output is correct
6 Correct 1 ms 1056 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 1 ms 1060 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1048 KB Output is correct
11 Correct 2 ms 1056 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 1064 KB Output is correct
14 Correct 1 ms 1060 KB Output is correct
15 Correct 1 ms 1056 KB Output is correct
16 Correct 1 ms 1064 KB Output is correct
17 Correct 1 ms 976 KB Output is correct
18 Correct 1 ms 1072 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 976 KB Output is correct
21 Correct 1 ms 1060 KB Output is correct
22 Correct 1 ms 1068 KB Output is correct
23 Correct 1 ms 1064 KB Output is correct
24 Correct 1 ms 1068 KB Output is correct
25 Correct 2 ms 1068 KB Output is correct
26 Correct 1 ms 1068 KB Output is correct
27 Correct 1 ms 1056 KB Output is correct
28 Correct 1 ms 1060 KB Output is correct
29 Correct 1 ms 1068 KB Output is correct
30 Correct 1 ms 976 KB Output is correct
31 Correct 1 ms 1048 KB Output is correct
32 Correct 1 ms 1048 KB Output is correct
33 Correct 1 ms 1060 KB Output is correct
34 Correct 1 ms 1056 KB Output is correct
35 Correct 1 ms 968 KB Output is correct
36 Correct 1 ms 1060 KB Output is correct
37 Correct 1 ms 1064 KB Output is correct
38 Correct 1 ms 1064 KB Output is correct
39 Correct 1 ms 1060 KB Output is correct
40 Correct 2 ms 1068 KB Output is correct
41 Correct 1 ms 1068 KB Output is correct
42 Correct 1 ms 1048 KB Output is correct
43 Correct 1 ms 1072 KB Output is correct
44 Correct 1 ms 1064 KB Output is correct
45 Correct 1 ms 976 KB Output is correct
46 Correct 1 ms 1064 KB Output is correct
47 Correct 1 ms 1048 KB Output is correct
48 Correct 1 ms 1056 KB Output is correct
49 Correct 1 ms 1056 KB Output is correct
50 Correct 1 ms 1060 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1064 KB Output is correct
2 Correct 1 ms 1068 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1052 KB Output is correct
6 Correct 1 ms 1056 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 1 ms 1060 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1048 KB Output is correct
11 Correct 2 ms 1056 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 1064 KB Output is correct
14 Correct 1 ms 1060 KB Output is correct
15 Correct 1 ms 1056 KB Output is correct
16 Correct 1 ms 1064 KB Output is correct
17 Correct 1 ms 976 KB Output is correct
18 Correct 1 ms 1072 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 976 KB Output is correct
21 Correct 1 ms 1060 KB Output is correct
22 Correct 1 ms 1068 KB Output is correct
23 Correct 1 ms 1064 KB Output is correct
24 Correct 1 ms 1068 KB Output is correct
25 Correct 2 ms 1068 KB Output is correct
26 Correct 1 ms 1056 KB Output is correct
27 Correct 1 ms 1044 KB Output is correct
28 Correct 1 ms 1060 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 1048 KB Output is correct
31 Correct 1 ms 1060 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 1056 KB Output is correct
34 Correct 1 ms 1056 KB Output is correct
35 Correct 1 ms 976 KB Output is correct
36 Correct 1 ms 1068 KB Output is correct
37 Correct 1 ms 1064 KB Output is correct
38 Correct 1 ms 1104 KB Output is correct
39 Correct 2 ms 1064 KB Output is correct
40 Correct 1 ms 1064 KB Output is correct
41 Correct 1 ms 1068 KB Output is correct
42 Correct 1 ms 1072 KB Output is correct
43 Correct 1 ms 1048 KB Output is correct
44 Correct 1 ms 1048 KB Output is correct
45 Correct 1 ms 1064 KB Output is correct
46 Correct 1 ms 1064 KB Output is correct
47 Correct 1 ms 1068 KB Output is correct
48 Correct 1 ms 1064 KB Output is correct
49 Correct 1 ms 1048 KB Output is correct
50 Correct 1 ms 1060 KB Output is correct
51 Correct 1 ms 1068 KB Output is correct
52 Correct 1 ms 1056 KB Output is correct
53 Correct 1 ms 1060 KB Output is correct
54 Correct 1 ms 1068 KB Output is correct
55 Correct 1 ms 976 KB Output is correct
56 Correct 1 ms 1048 KB Output is correct
57 Correct 1 ms 1048 KB Output is correct
58 Correct 1 ms 1060 KB Output is correct
59 Correct 1 ms 1056 KB Output is correct
60 Correct 1 ms 968 KB Output is correct
61 Correct 1 ms 1060 KB Output is correct
62 Correct 1 ms 1064 KB Output is correct
63 Correct 1 ms 1064 KB Output is correct
64 Correct 1 ms 1060 KB Output is correct
65 Correct 2 ms 1068 KB Output is correct
66 Correct 1 ms 1068 KB Output is correct
67 Correct 1 ms 1048 KB Output is correct
68 Correct 1 ms 1072 KB Output is correct
69 Correct 1 ms 1064 KB Output is correct
70 Correct 1 ms 976 KB Output is correct
71 Correct 1 ms 1064 KB Output is correct
72 Correct 1 ms 1048 KB Output is correct
73 Correct 1 ms 1056 KB Output is correct
74 Correct 1 ms 1056 KB Output is correct
75 Correct 1 ms 1060 KB Output is correct
76 Correct 1 ms 208 KB Output is correct
77 Correct 1 ms 208 KB Output is correct
78 Correct 1 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 0 ms 208 KB Output is correct
81 Correct 1 ms 208 KB Output is correct
82 Correct 0 ms 208 KB Output is correct
83 Correct 1 ms 208 KB Output is correct
84 Correct 1 ms 428 KB Output is correct
85 Correct 1 ms 424 KB Output is correct
86 Correct 1 ms 424 KB Output is correct
87 Correct 1 ms 428 KB Output is correct
88 Correct 1 ms 464 KB Output is correct
89 Correct 1 ms 420 KB Output is correct
90 Correct 1 ms 428 KB Output is correct
91 Correct 1 ms 420 KB Output is correct
92 Correct 1 ms 1044 KB Output is correct
93 Correct 1 ms 1056 KB Output is correct
94 Correct 1 ms 1060 KB Output is correct
95 Correct 1 ms 1056 KB Output is correct
96 Correct 1 ms 1044 KB Output is correct
97 Correct 1 ms 1060 KB Output is correct
98 Correct 1 ms 1064 KB Output is correct
99 Correct 1 ms 1064 KB Output is correct
100 Correct 1 ms 1052 KB Output is correct
101 Correct 1 ms 1056 KB Output is correct
102 Correct 1 ms 1048 KB Output is correct
103 Correct 1 ms 1060 KB Output is correct
104 Correct 1 ms 1056 KB Output is correct
105 Correct 1 ms 1052 KB Output is correct
106 Correct 1 ms 1056 KB Output is correct
107 Correct 1 ms 968 KB Output is correct
108 Correct 1 ms 1052 KB Output is correct
109 Correct 1 ms 1052 KB Output is correct
110 Correct 1 ms 1040 KB Output is correct
111 Correct 1 ms 1060 KB Output is correct
112 Correct 1 ms 1044 KB Output is correct
113 Correct 1 ms 1048 KB Output is correct
114 Correct 1 ms 1060 KB Output is correct
115 Correct 1 ms 968 KB Output is correct
116 Correct 1 ms 1068 KB Output is correct
117 Correct 1 ms 1060 KB Output is correct
118 Correct 1 ms 968 KB Output is correct
119 Correct 1 ms 1060 KB Output is correct
120 Correct 1 ms 1060 KB Output is correct
121 Correct 1 ms 1048 KB Output is correct
122 Correct 1 ms 968 KB Output is correct
123 Correct 1 ms 1060 KB Output is correct
124 Correct 1 ms 1064 KB Output is correct
125 Correct 1 ms 1060 KB Output is correct
126 Correct 1 ms 1048 KB Output is correct
127 Correct 1 ms 1044 KB Output is correct
128 Correct 1 ms 1048 KB Output is correct
129 Correct 1 ms 1048 KB Output is correct
130 Correct 1 ms 1056 KB Output is correct
131 Correct 1 ms 1056 KB Output is correct
132 Correct 1 ms 1064 KB Output is correct
133 Correct 1 ms 1048 KB Output is correct
134 Correct 1 ms 1064 KB Output is correct
135 Correct 1 ms 1060 KB Output is correct